state-management | Comparison of JS state management libraries | Frontend Framework library

I am trying to rewrite this Apollo typescript repository to javascript. I try to learn typescript but there is one thing called 'type casting' or 'type assertion' which makes me confuse.

let me explain it with code:

//cache.tsx

I started build an e-commerce app that allows people buy one item by turn. However, I don't have deep knowledge about Flutter app architecture to follow. The app will get all data from a server and will persist only basic user data in the mobile device. I want to know which are the patterns and architectures (state-management) to study and apply considering that I am a beginner in Flutter.

I'm trying to re-render a component using useEffect and passing dependencies, but it isn't working. I'm quite new to react hooks so I think I might not be passing the correct dependency. I'm fetching some info and updating the state, however, when I passed the dependencies the re-render cycle does not happen.

Here is the code:

I'm trying to submit a form that sends a http request onSubmit, but I'm getting undefined when setting the state on the values. I'm not sure why the values are not being passed upon click and being set with the set...() function.

Below is the code of that component. Upon first submit action I get an error because the "surveyUserAnswers" are undefined, but in the next submissions it works. Not sure why? Could someone advise.

I'm very new to typescript and react hooks, so excuse my code! thanks

Going through this tutorial on Riverpod and using this code gives an error Unexpected text 'late'

I'm struggling trying to make a GetxController work with a SliverList. In particular, my controller returns the view state with StateMixin from Getx library.

First of all, I'm new to Angular's world, with some experience from AngualarJS (useless here hahaha)

I'm following this link in order to have a Service/State for a specific Module.

But as soon as I use it inside the very module, I get a circular dependency Warning: Circular dependency detected

How could I possibly use such a providedIn property to set a Module, if I get this error?

home-store.service.ts

I'm building a pretty simple restaurant website using React and Next.js. I have a home page and an 'order' page, which renders a menu from a state object ('menuitems'). I want the user to be able to add items to their 'cart', which is another state object. So ultimately I'm transferring data from the static 'menuitems' state to the 'cart.'

What I can't figure out is how I can update the 'cart' state from my 'order' page.

I've set up a context for the app going off of this guide. I've been able to successfully access the menu using a call to the custom hook 'useAppContext()' but I no longer have access to the updater functions provided through useState() or useContext() calls I previously used when I built something similar with everything in a single file (you can see in my code below where I invoke the now-undefined setCartItem() function).

How can I update the 'cartitems' state from inside of my 'order' component?

File where I have my context object:

I have been trying to make the initial text passed through controller:TextEditingController(text:"Enter DOB") inside a TextField widget in Flutter editable, but I can't find any solution(for now).

I want to make the selectedDate(or the initial text) editable after selecting a date from the showDatePicker method inside the TextField.

SO I NEED SOME HELP HERE. Is there a way to do it??

Following is my code. I want to make the text in the controller editable.